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| Parameter | SKF54420 M80 × 210 × mm | NSK54420X80 × 210 × 160 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | NSK |
| Designation | 54420 M | 54420X |
| Product family | Thrust ball bearings | Axial deep groove ball bearing |
| Detailed type | Double direction thrust ball bearing with sphered housing washers | Axial deep groove ball bearings |
| Bore diameterd | 80 mm | 80 mm |
| Outside diameterD | 210 mm | 210 mm |
| WidthB | — | 160 mm |
| HeightH | 159.9 mm | — |
| Basic dynamic load ratingC | 371 kN | — |
| Basic static load ratingC0 | 1060 kN | — |
| Fatigue load limitPu | 31.5 kN | — |
| Reference speednref | 700 r/min | — |
| Limiting speednG | 950 r/min | — |
| Mass≈m | 26.1 kg | 27.2 kg |
| Cage | Machined brass | — |
| Bearing material | Bearing steel | — |
| Aligning-seat geometry | ||
| Aligning-seat geometric referenceA1 | — | 43.5 mm |
| Spherical seat radiusR | — | 160 mm |
| Assembly boundary dimensions | ||
| Shaft-washer bore diameterd2 | — | 80 mm |
| Overall outside diameterD | — | 210 mm |
| Complete assembled heightT5 | — | 160 mm |
| Axial load ratings | ||
| Basic dynamic axial load ratingCa | — | 370000 N |
| Basic static axial load ratingC0a | — | 985000 N |
| Chamfers | ||
| Minimum housing-side chamferr min. | — | 3 mm |
| Minimum shaft-side chamferr1 min. | — | 1.1 mm |
| Component dimensions | ||
| Central shaft washer outside diameterd3 | — | 209.5 mm |
| Housing washer bore diameterD1 | — | 103 mm |
| Adjacent shaft diameter shown in the catalogue drawing — not the bored | — | 100 mm |
| Central shaft washer thicknessB | — | 33 mm |
| Partial axial height in the assembly drawingT6 | — | 96.5 mm |
| Construction | ||
| Axial load directions | — | Both directions |
| Seat construction | — | Aligning seat |
| Radial-load support | — | Not suitable for radial load; separate radial support required |
| Dimensions | ||
| Radius of aligning surface | 160.0 mm | — |
| Engineering — Abutment dimensions | ||
| Abutment diameter shaftd a | 100 mm | — |
| Abutment diameter housingD a | max. 155 mm | — |
| Fillet radius housingr a | max. 2.5 mm | — |
| Fillet radius shaftr b | max. 1 mm | — |
| Engineering — Associated products | ||
| Seat washer | U 420 | — |
| Engineering — Calculation data | ||
| Minimum load factorA | 5.8 | — |
| Engineering — Dimensions | ||
| Height bearing including seat washerH 1 | 176 mm | — |
| Inner diameter housing washerD 1 | ≈ 103 mm | — |
| Inner diameter sphered seat washerD 2 | 155 mm | — |
| Outside diameter sphered housing washerD 3 | 220 mm | — |
| Height shaft washerB | 33 mm | — |
| Height sphered housing washerC | 27 mm | — |
| Radius sphered housing washerR | 160 mm | — |
| Centre height housing washer spheres | 43.5 mm | — |
| Chamfer dimension housing washerr 1,2 | min. 3 mm | — |
| Chamfer dimension shaft washerr 3,4 | min. 1.1 mm | — |
| Logistics | ||
| Product net weight | 26.1 kg | — |
| eClass code | 23-05-10-01 | — |
| UNSPSC code | 31171507 | — |
| Lubrication-qualified speed | ||
| Limiting speed — grease | — | 670 r/min |
| Limiting speed — oil | — | 1000 r/min |
| Mass reference | ||
| Approximate assembly mass | — | 27.2 kg |
| Mounting dimensions | ||
| Maximum housing abutment diameterDa max. | — | 155 mm |
| Maximum housing-side fillet radiusra max. | — | 2.5 mm |
| Maximum shaft-side fillet radiusrb max. | — | 1 mm |
| Product identity | ||
| Official product category | Thrust ball bearings | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/thrust-ball-bearings | — |
| Structure group ID | BE1_001_002 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Properties | ||
| Axial load capability | Double-direction | — |
| Number of rows | 2 | — |
| Housing washer type | Sphered | — |
| Tolerance class | Normal | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Indicative carbon footprint for new product | 96.6 kg CO 2 e | — |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.